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Couplings


BS AU 2a:1970

Specification for dimensions of 3?¢ - 4?¢ in diameter fifth wheel king pin for use with extra heavy duty semi-trailers

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BS AU 3:1970

Specification for clearance dimensions and fifth wheel positions for tractors and semi-trailers

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BS AU 5:1963

Specification for dimensions of a 'contact' type coupling for vacuum and pressure braking systems on trailers and semi-trailers

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BS AU 25:1964

Specification for towing hook for use between trailers of 5-14 tons gross weight and towing vehicle

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BS AU 26:1964

Specification for towing jaw for use between trailers of 5-16 tons gross weight and towing vehicle

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BS AU 27:1964

Specification for towing hook for use between trailers of 5-35 tons gross weight and towing vehicle

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BS AU 28:1964

Specification for towing jaw for use between trailers of 5-35 tons gross weight and towing vehicle

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BS AU 29:1964

Specification for drawbar eyes and forecarriage pins for connection between trailers of 5-35 tons gross weight and towing vehicle

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BS AU 30b:1970

Specification for standard automatic roller-type coupling for semi-trailers of 7 tons to 14?¥ tons laden weight

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BS AU 114b:1979

Specification for strength requirements of towing brackets and coupling balls for caravans and light trailers

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BS AU 146b:1970

Specification for standard automatic roller-type coupling for semi-trailers not exceeding 7?? tons laden weight

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BS AU 188:1983, ISO 5422-1982

Specification for anchorages for towing ropes, cables or bars for road vehicles

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